Dremio server start error

2017-11-24 15:59:44,101 [FABRIC-3] ERROR com.dremio.exec.rpc.BasicClient - Failed to establish connection
java.util.concurrent.ExecutionException: java.nio.channels.UnresolvedAddressException
at io.netty.util.concurrent.AbstractFuture.get(AbstractFuture.java:54) ~[netty-common-4.0.49.Final.jar:4.0.49.Final]
at com.dremio.exec.rpc.BasicClient$ConnectionMultiListener$ConnectionHandler.operationComplete(BasicClient.java:200) [dremio-services-base-rpc-1.2.2-2017101001
54510864-d40e31c.jar:1.2.2-201710100154510864-d40e31c]
at com.dremio.exec.rpc.BasicClient$ConnectionMultiListener$ConnectionHandler.operationComplete(BasicClient.java:187) [dremio-services-base-rpc-1.2.2-2017101001
54510864-d40e31c.jar:1.2.2-201710100154510864-d40e31c]
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507) [netty-common-4.0.49.Final.jar:4.0.49.Final]
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:481) [netty-common-4.0.49.Final.jar:4.0.49.Final]
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:420) [netty-common-4.0.49.Final.jar:4.0.49.Final]
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:122) [netty-common-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.connect(AbstractNioChannel.java:241) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.connect(DefaultChannelPipeline.java:1226) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:539) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:524) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.ChannelOutboundHandlerAdapter.connect(ChannelOutboundHandlerAdapter.java:47) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:539) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:524) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.ChannelDuplexHandler.connect(ChannelDuplexHandler.java:50) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:539) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:524) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:506) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.DefaultChannelPipeline.connect(DefaultChannelPipeline.java:970) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.AbstractChannel.connect(AbstractChannel.java:214) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.bootstrap.Bootstrap$2.run(Bootstrap.java:166) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:399) [netty-common-4.0.49.Final.jar:4.0.49.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) [netty-transport-4.0.49.Final.jar:4.0.49.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) [netty-common-4.0.49.Final.jar:4.0.49.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_112]
Caused by: java.nio.channels.UnresolvedAddressException: null
at sun.nio.ch.Net.checkAddress(Net.java:101) ~[na:1.8.0_112]
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:622) ~[na:1.8.0_112]

Hi @JoyJava,

I can see the below exception, do you have a single node setup or have the executors on a separate node? Can the co-ordinator ping the executor nodes if different?

2017-11-24 15:59:44,101 [FABRIC-3] ERROR com.dremio.exec.rpc.BasicClient - Failed to establish connection
java.util.concurrent.ExecutionException: java.nio.channels.UnresolvedAddressException 

Thanks,
@balaji.ramaswamy